| article html file updated | 9 February 2020 12:04 CET | Update | https://www.mdpi.com/2073-8994/10/4/91 |
| article html file updated | 2 October 2019 04:13 CEST | Update | - |
| article html file updated | 1 May 2019 07:01 CEST | Update | - |
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| article html file updated | 29 March 2019 11:40 CET | Update | - |
| article html file updated | 1 May 2018 05:40 CEST | Update | - |
| article html file updated | 31 March 2018 12:06 CEST | Original file | - |
| article xml uploaded. | 31 March 2018 12:04 CEST | Original file | https://www.mdpi.com/2073-8994/10/4/91/xml |
| article pdf uploaded. | 31 March 2018 12:04 CEST | Version of Record | https://www.mdpi.com/2073-8994/10/4/91/pdf |
